//
// Created by leisurexi on 12/9/20.
// thread3.c
//
#include <stdio.h>
#include <string.h>
#include <pthread.h>

int sum = 0;

void *thread_summation(void *arg) {
    int start = ((int *) arg)[0];
    int end = ((int *) arg)[1];

    while (start <= end) {
        sum += start;
        start++;
    }
    return NULL;
}

int main(int argc, char *argv[]) {
    pthread_t id_t1, id_t2;
    int range1[] = {1, 5};
    int range2[] = {6, 10};

    pthread_create(&id_t1, NULL, thread_summation, (void *) range1);
    pthread_create(&id_t2, NULL, thread_summation, (void *) range2);

    pthread_join(id_t1, NULL);
    pthread_join(id_t2, NULL);
    printf("result: %d \n", sum);
    return 0;
}